The literature develops the theoretical rationale for the Value of Tax Shields (VTS) on the following misguided basis: it uses required rate of return on assets (or WACC) as the discount rate for capitalization, it uses expected rate of return on assets (ROA¯ or ROI¯) as a proxy for WACC, and it is not aware of (1) the influence of the difference between “expected rate of return on equity” and “Required rate of Return On Equity (RROE)” on VTS, (2) the fact that RROE is equity normal profit which is not measurable, (3) the economic content of the weight attached to the VTS capacity, and (4) the co-definition of “tax shield and leverage return.” This paper takes tax shields and leverage return as a system and provides a knife, “interest rate/ROI=Cost/Price”, to slice the VTS capacity into “earned VTS” and “unearned VTS.” Earned VTS is VTS. Unearned VTS is the value of leverage return, because leverage return is tax payable.

We examine the relation between implied cost of capital and expected returns under an assumption that expected returns are stochastic, a property supported by theory and empirical evidence. We demonstrate that implied cost of capital differs from expected return, on average, by a function encompassing volatilities of, as well as correlation between, expected returns and cash flows, growth in cash flows, and leverage. These results provide alternative explanations for findings from empirical studies employing implied cost of capital on the magnitude of the market risk premium; predictability of future returns; and the relations between cost of capital and a host of firm characteristics, such as growth, leverage, idiosyncratic risk and the firm’s information environment.

Historical market-to-book has been shown to explain current leverage. Prior studies attribute the evidence to market timing. This study shows that with the presence of time-varying targets and adjustment costs, historical market-to-book has a significant impact on leverage even when firms do not time the market. The historical values of alternative market timing proxies, such as insider sales and the market sentiment index, are shown to have no effects on leverage while the historical values of alternative growth-option proxies do have effects. Overall, the evidence is largely consistent with a partial adjustment model of leverage.

This study identifies several interrelated reasons why firms’ depreciation method choice is likely to influence managers’ capital investment decisions. We find that firms that use accelerated depreciation make significantly larger capital investments than firms that use straight-line depreciation. Further, we find that there has been a migration away from accelerated depreciation to straight-line depreciation over the past two decades. Firms that make such accounting changes make smaller capital investments in the post-change periods than in the pre-change periods. These results suggest that a choice made for external financial reporting purposes influences managers’ capital investment decisions.

We consider firms that, all else equal, wish to minimize variability in their internal capital (due to convex costs of raising external funds). The firms can hedge the cash flow risk of the project, but not that of winning or losing the auction. We characterize optimal hedging and bidding strategies in this competition framework. We show that access to financial markets makes firms bid more aggressively, possibly even above their valuation for the project. In addition, hedging increases the variance of bids and makes firm values more dispersed. Further, with hedging, the covariance of internal capital changes with the risk factor is negative, and is more negative, the higher the correlation of the hedging instrument with the risk factor.

[Individual investor trading results in systematic and economically large losses. Using a complete trading history of all investors in Taiwan, we document that the aggregate portfolio of individuals suffers an annual performance penalty of 3.8 percentage points. Individual investor losses are equivalent to 2.2% of Taiwan's gross domestic product or 2.8% of the total personal income. Virtually all individual trading losses can be traced to their aggressive orders. In contrast, institutions enjoy an annual performance boost of 1.5 percentage points, and both the aggressive and passive trades of institutions are profitable. Foreign institutions garner nearly half of institutional profits.]

The Impact of Unexpected Maternal Death on Education: First Evidence from Three National Administrative Data Links by Stacey H. Chen, Yen-Chien Chen and Jin-Tan Liu. Published in volume 99, issue 2, pages 149-53 of American Economic Review, May 2009

Spousal education is correlated with earnings for two reasons: cross‐productivity between couples and assortative mating. This article empirically disentangles the two effects by using Chinese twins data. We have two innovations: using twins data to control for the unobserved mating effect in our estimations and estimating both current and wedding‐time earnings equations. We find that both crossproductivity and mating are important in explaining the current earnings. Although the mating effect exists for both husbands and wives, the cross‐productivity effect mainly runs from Chinese husbands to wives. Our findings shed light on the theories of human capital, marriage, and the family.

A number of studies have investigated the causes and effects of stock market crashes. These studies mainly focus on the factors leading to a crash and on the volatility and co-movements of stock market indexes during and after the crash. However, how a stock market crash affects individual stocks and if stocks with different financial characteristics are affected differently in a stock market crash is an issue that has not received sufficient attention. In this paper, we study this issue by using data for eight major stock market crashes that have taken place during the December 31, 1962–December 31, 2007 period with a large sample of US firms. We use the event-study methodology and multivariate regression analysis to study the determinants of stock returns in stock market crashes.

Individual investor trading results in systematic and economically large losses. Using a complete trading history of all investors in Taiwan, we document that the aggregate portfolio of individuals suffers an annual performance penalty of 3.8 percentage points. Individual investor losses are equivalent to 2.2% of Taiwan's gross domestic product or 2.8% of the total personal income. Virtually all individual trading losses can be traced to their aggressive orders. In contrast, institutions enjoy an annual performance boost of 1.5 percentage points, and both the aggressive and passive trades of institutions are profitable. Foreign institutions garner nearly half of institutional profits.